数组
1 //数组元素求最值，反转 2 public class Array { 3 public static void main(String[] args) { 4 int[] array=new int[]{50,47,68,24,100}; 5 int max,min; 6 max=min=array[0]; 7 for(int i=1;i<array.length;i++) 8 {if(array[i]>max) 9 max=array[i]; 10 if(array[i]<min) 11 min=array[i];} 12 System.out.println("最大值："+max); 13 System.out.println("最小值："+min); 14 int i=0; 15 int right=array.length-1; 16 for(;i<array.length/2;i++,right--) 17 {int t=array[i]; 18 array[i]=array[right]; 19 array[right]=t;} 20 for (i = 0; i < array.length; i++) { 21 System.out.println(array[i]); 22 } 23 24 } 25 } 26 ----------------------------- 27 最大值：100 28 最小值：24 29 100 30 24 31 68 32 47 33 50 34 35 Process finished with exit code 0
数组作为函数的返回值（地址传递）
1 public class Methodarray { 2 public static void main(String[] args) { 3 double[] a=cal(2.2,3.5,6.8); 4 System.out.println(a[0]); 5 System.out.println(a[1]); 6 7 } 8 public static double[] cal(double a,double b,double c){ 9 double[] array={a+b+c,(a+b+c)/3}; 10 return array; 11 } 12 } 13 ---------------------------------------------- 14 12.5 15 4.166666666666667 16 17 Process finished with exit code 0
return语句只能返回一个，但使用数组，可返回数组地址，间接返回多个值
